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Finding the Fourth Proportional to 83,296.80, 124,750.80 and 81,626.40

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Solution

The fourth proportional to 83,296.80, 124,750.80 and 81,626.40 is: 122,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,296.80 : 124,750.80 = 81,626.40 : x
  2. Step 2: Convert to fraction form
    83,296.80/124,750.80 = 81,626.40/x
  3. Step 3: Cross multiply
    83,296.80x = 124,750.80 × 81,626.40
  4. Step 4: Simplify right side
    83,296.80x = 10,182,958,701.12
  5. Step 5: Solve for x
    x = 10,182,958,701.12/83,296.80
  6. Step 6: Final answer
    x = 122,249.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.